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Fix LyX server on Windows
On some recent Windows versions, GetLastError() may also return NO_ERROR instead of ERROR_IO_PENDING during an overlapped write operation to a pipe. This was confusing the state machine in Server.cpp so that replies to commands were scheduled but were never actually output.
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@ -356,7 +356,7 @@ bool LyXComm::pipeServer()
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error = GetLastError();
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if (success && error == ERROR_IO_PENDING) {
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if (success && (error == ERROR_IO_PENDING || error == NO_ERROR)) {
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// The write operation is still pending.
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// We get here when a reader is started
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// well before a reply is ready, so delay
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